/ Technology

The world’s largest online retailer filed a complaint in federal court in April seeking to block the North Carolina Department of Revenue’s demand for the names and addresses of several thousand customers who have purchased a total of more than 50 million products from Amazon since 2003.

/ E-Retailers

Better World Books, a for-profit venture that collects and sells new and used books online and donates a percentage of each sale to help fund literacy initiatives worldwide, recorded Earth Day sales 300% higher than the previous year, thanks, in part, to an aggressive social media push, the company says.

Computer and printer manufacturer Hewlett-Packard Company has announced that Richard Gerstein is joining the company in May as senior vice president of strategy and worldwide marketing for its Personal Systems Group. Gerstein replaces Satjiv Chahil, who retired earlier this year but has stayed on as a consultant.